Chad - X 
I was lucky enough to be in the historic Paramount Theatre in Austin, TX for this presentation by Apollo Astronaut Charlie Duke last January.
Such an amazing guy, hilarious, and I learned a great deal about the Apollo 16 mission.
To be in the room with one of the few remaining humans who have walked on the Moon was incredible.
Charlie is such a - beg the pun - down-to-earth fellow, and incredibly engaging.
